Count Robert of Mortain

Count Robert of Mortain (1031-9 December 1095) was the count of Mortain and the half-brother of William the Conqueror, helping him at the 1066 Battle of Hastings, where William took over England.

Biography
Robert was the son of Herluin de Conteville, and he was from the House of Conteville, a dynasty of Catholic Normans. Robert was the half-brother of William the Conqueror, and in 1049 he was granted the county of Mortain by his half-brother, the Duke of Normandy. He provided 120 ships for William during his invasion of England, giving him the most support for the invasion, and he was one of his companions at the Battle of Hastings in 1066. Robert was granted land in Cornwall as a reward, and he died in 1095. His son William de Conteville would be one of the leaders of the rebellion against his cousin Henry I of England.